JP2002293272A - Display unit of running work vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem in a conventional display unit wherein a number of meters, lamps, switches, or the like are disposed on a conventional meter panel or fender and thus a driver hardly recognizes a situation by only panel display. SOLUTION: A driving part 30 of a running work vehicle is provided with a display means for displaying the present action information operation information, and abnormality information of the vehicle on a screen and display units having an operating means for performing a selecting operation and a setting operation on the same screen. Respective descriptive information of the action information, operation information, abnormality information, the selecting operation and the setting operation of the work vehicle can be displayed, the display units are projected in front of a driver's seat 5 and in the central back part of a dash board 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traveling work vehicle,
The present invention relates to a technology of a display device provided at a rear part of a dashboard in front of a driver's seat of a tractor.

[0002]

2. Description of the Related Art Conventionally, in a traveling work vehicle such as a tractor, a meter panel 12 'as shown in FIG. 14 is arranged on a dashboard in front of a driver's seat. The meter panel 12 'includes an engine speed meter 31 and a water temperature meter 32.
Meters such as a fuel gauge 33 and a fuel gauge, and a warning lamp such as a lamp 34 for notifying an abnormal oil pressure, a lamp 35 during remaining heat, a lamp 36 for notifying that the battery needs to be charged,
Lamps indicating the current state, such as a lamp 40 for notifying the rise of the work machine, a lamp 39 for notifying that the front wheel speed increase is operable, and a lamp 38 for notifying that the left and right brake pedals are disconnected are arranged. Have been. On the fender 16, as shown in FIG. 15, the main speed change lever 18, the engine speed changeover switch 52, the dial 56 for setting the inclination of the work implement, the switch 57 for inclining the work implement, and the like are arranged.

[0003]

As described above, a large number of meters, lamps, switches, and the like are arranged on a conventional meter panel or fender, and a driver looks at the number or level indicated by the pointer of the meter. Judge,
When the lamp was turned on, they saw and understood the display on the nameplate, and operated the switches according to the instructions on the nameplate. However, the number of functions mounted on the tractor has increased, and the types of indicators such as lamps and switches and volumes to be operated have increased too much. The number of cases where they cannot be understood has increased. In addition, the places for arranging them are too small, making them small and difficult to read and difficult to operate.

[0004] In particular, when switching from an old model to a new model, the number of displays such as lamps increases, so that the driver often gets lost in deciding which display to pay attention to. The volume and the like are also increased and each setting is cumbersome, and the driver needs to master the operation. The nameplates were stuck on the fuselage to understand this, but reading them all was very painful for the driver. In addition, constantly displaying information required for a specific task leads to a flood of information, which hinders recognition of necessary information. Also,
A sticker or name plate with a simple explanation is pasted or printed on the fender or body, but if you paste many name plates so that you can understand everything, it will cause damage to the appearance, even if you paste a lot It was easy for dirt or scratches to adhere and become dirty and damaged, making it difficult to read. Therefore, in order to simplify displays and operations, the functions to be mounted on the work vehicle were limited.

[0005]

The present invention uses the following means in order to solve the above problems. That is, in claim 1, a display unit for displaying the current operation information, operation information, and abnormality information of the work vehicle on the screen in the driving unit of the traveling work vehicle, and performing a selection operation and a setting operation on the same screen. A display device having operation means is provided.

According to a second aspect of the present invention, it is possible to display operation information, operation information, abnormality information, and selection information and setting operation information of the work vehicle.

According to a third aspect of the present invention, the display device is arranged so as to protrude in front of a driver's seat and in a center rear portion of a dashboard.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The problems and means to be solved by the present invention are as described above. Next, an embodiment of the present invention shown in the attached drawings will be described. FIG. 1 is a plan view of a tractor equipped with the display device of the present invention, FIG. 2 is a plan view of a meter panel,
FIG. 3 is a plan view of a fender, FIG. 4 is a side view in which a display device of the present invention is laid on a dashboard, FIG. 5 is a rear view thereof, FIG. 6 is a plan view thereof, FIG.
Is a view showing a setting screen of the liquid crystal panel, FIG. 9 is a view showing a screen in the work mode, FIG. 10 is a view showing a screen at the time of rough work setting, and FIG. 11 is a view showing current information at the time of rough work. FIG. 12 is a diagram showing a warning screen, and FIG. 13 is a diagram showing a screen showing an abnormality.

First, an overall configuration of a tractor 10 as a working vehicle in FIG. 1 will be described. The tractor 10 is provided with a front wheel 1.1 and a rear wheel 2.2 suspended from a lower front part of the machine and a rear wheel 2.2 at a rear lower part. An engine 6 is disposed in a hood 3 at the front part. I have. A driving unit 30 is disposed at the center of the fuselage. A steering handle 4 is disposed behind the hood 3. A driver seat 5 is disposed behind the steering handle 4. A transmission case 9 is disposed below, and a work implement mounting device 7 is disposed behind the transmission case 9.

A dashboard 11 is disposed at the rear of the hood 3 and a meter panel 1 is provided at the front of the steering handle 4 projecting above the dashboard 11.
2 is disposed, and a liquid crystal panel 13 serving as a display device of the present invention is disposed behind the steering handle 4. An accelerator lever 14 is disposed on the right side of the dashboard 11, and a forward / reverse switching lever 15 is disposed on the left side.

The driver's seat 5 and the right fender 16
R, a lift lever 17 of the working machine is arranged, a main shift lever 18 is arranged on the right fender 16R, and a sub shift lever 19 is provided between the driver seat 5 and the left fender 16L. A PTO shift lever 25 is provided. A step 20 is arranged between the dashboard 11 and the driver's seat 5, and an accelerator pedal 21 and left and right brake pedals 22R and 22R are provided on the right side of the step 20.
L are disposed, and the left and right brake pedals 22R and 22L can be independently braked by depressing each, and the left and right brake pedals 22R and 22L can be connected by operating the connecting plate 23 provided on one of the brake pedals. When the vehicle is running or moving on the road, the vehicle is connected, and the vehicle is braked independently during work. On the left side of the step 20, a clutch pedal 26 is arranged. The driving unit 30 is configured in this manner. However, the arrangement of the levers and pedals is not limited.

Next, the display device of the present invention will be described.
As can be seen by comparing the meter panel 12 of the present embodiment shown in FIG. 2 with the conventional meter panel 12 ′ shown in FIG. 14, the present embodiment has a shape close to that of an older model panel. , With a simple configuration.
That is, in the present embodiment, the tachometer 31 is located at the center of the meter panel 12, the water temperature gauge 32 is located at the right side, and the fuel gauge 3 is located at the left side.
3, an engine oil pressure lamp 34 for displaying an abnormality of the engine oil pressure from the right side, a residual heat lamp 35 for displaying that the battery is underheating at a low temperature, a charging lamp 36 for displaying a low battery voltage, and a total work. An hour meter 37 for displaying time, a brake connection release lamp 38 for displaying that the connection plate 23 connecting the left and right brake pedals is released, and the steering handle 4
Indicates that the front wheel can be accelerated when it is rotated by more than a set angle, that is, a high grip lamp 39 which is turned on when the front wheel is switched to a front wheel accelerated state (high grip turn switch “ON”), A work implement lift lamp 40 that is lit when is in the lift position is disposed.

Conventionally, the following switches and lamps are arranged below the switch. In the present invention, the switch and lamp are omitted because they cause confusion in the operation of the driver, and can be set from the liquid crystal panel 13. The omitted switch and lamp are shown in Figure 1.
As shown in FIG.
When the is turned, the turning switch 41 that raises the work machine,
A lamp 45 indicating that the turning switch 41 is switched to the "on" side, a back switch 42 for raising the work implement when the main shift lever 18 is shifted to the reverse position, and a back switch 42 for "on" Side, an automatic level switch 48 for controlling whether the work implement is maintained horizontally or for setting manually, and displayed when the automatic level switch 48 is "on". An automatic horizontal lamp 47, a high grip turn switch 49 for increasing the forward speed when the steering handle 4 is turned by a set angle or more, and other lamps 43 and 44 which are turned on when an abnormality occurs.

Also, as shown in FIG.
The lever guide 24 of the main transmission lever 18 provided on the R is also simplified so that it can be easily understood. That is, FIG.
As shown in the figure, on the conventional fender 16, an operation name indicating plate 51, an engine speed changeover switch 52, an engine deceleration setting knob 53, and a raising height regulating dial 54 are provided.
A dial 55 for switching the type of the work machine mounting device, a work machine tilt setting dial 56, a switch 57 for manually tilting the work machine, and the like are arranged. Settings and operations can be performed on the setting screen.

Next, a liquid crystal panel 1 serving as a display device of the present invention.
3 will be described. The liquid crystal panel 13 is a display case 61
Placed on top, as shown in FIGS. 1, 4, 5, and 6,
It protrudes rearward from the upper center of the rear surface of the dashboard 11, is located in front of the driver's seat 5, and is located at a position where it does not hinder the driving operation. The display case 61 of the liquid crystal panel 13 is provided on the dashboard 1 by screws 62, 62,.
1 It is fixed to the rear surface and is removable. The display case 6
Reference numeral 1 denotes a liquid crystal panel 13 which projects obliquely downward from a slightly lower side between the accelerator lever 14 and the forward / reverse switching lever 15.
Is directed obliquely upward so that the driver can easily see and operate the screen.

The liquid crystal panel 13 also serves as a touch panel. By touching a predetermined position on the screen, the liquid crystal panel 13 recognizes that the predetermined position has been operated, and enables setting and operation. The setting selection operation may be performed using a selection switch or a small keyboard provided near the liquid crystal panel 13. FIG. 7 is a control block diagram. The traveling control controller 70, the work implement control controller 71, and the display control controller 64 are controlled by three controllers. As shown in FIG. Although arranged below the driver's seat 5, it can be provided on the dashboard 11. The display controller 64 is arranged in the display case 61.

On the input side of the travel controller 70, a main shift lever sensor 72 for detecting the turning position of the main shift lever 18, a direction changeover switch 73 for detecting the operation position of the forward / reverse switching lever 15, and an HST 82 (main The transmission is HST), a trunnion shaft sensor 74 for detecting the rotation angle of the movable swash plate, an axle rotation speed sensor 75 for detecting the rotation of the rear wheel, and an engine rotation speed sensor for detecting the rotation speed of the engine 6. 76, HST pressure sensors 77 and 78 for detecting the hydraulic pressure of the closed circuit of the HST 82, an auxiliary shift position sensor 79 for detecting the shift position of the auxiliary transmission, and detecting whether the connecting plate 23 of the brake pedals 22R and 22L is connected. The brake non-connection switch 80 is connected.

A trunnion shaft drive actuator 81 for changing the angle of the movable swash plate of the HST 82 is connected to the output side of the travel controller 70 so that signals can be transmitted and received to and from the display controller 64, The liquid crystal display unit 6 is
The liquid crystal display unit 65 is connected to the liquid crystal panel 1.
The display controller 64 controls the display of the liquid crystal panel 13 and the transmission of signals by operation from the touch panel. In this way, for example, when the main shift lever 18 is rotated, the shift position is detected by the main shift lever sensor 72, and the value is transmitted to the traveling control controller 70, and the trunnion shaft drive actuator 81 is operated. Change the movable swash plate to a predetermined angle and set the HS
The output rotation of T82 is controlled, and the shift position is displayed on the screen of the liquid crystal panel 13.

On the input side of the work machine control controller 71, there is provided a work machine vertical lever sensor 83 for detecting the rotation position of the lift lever 17, and a work machine lift provided on a work machine lift lever provided on the dashboard 11 (not shown). Switch 8
4. Lift angle sensor 85 for detecting the angle of the lift arm of the work machine mounting device 7, work machine angle sensor 86 for detecting the angle of the work machine relative to the horizontal plane, machine angle sensor 87 for detecting the angle of the machine, work machine An angular velocity sensor 88 for detecting the angular velocity at the time of rotation is connected. The output side of the work machine control controller 71 is connected to a drive circuit 97 for operating the work machine lifting cylinder 95 and the work machine tilt cylinder 96, respectively.
And send and receive signals to and from each other.

In such a configuration, the liquid crystal panel 13
A specific screen display and operation will be described. After the engine is started, whether the main shift lever 18 is in the neutral state,
Alternatively, when the forward / reverse switching lever 15 is in the neutral position, these are the main transmission lever sensor 72 and the direction switching switch 73.
The operation information screen as shown in FIG. 8 is displayed on the liquid crystal panel 13 so that the operation position can be selected by touching the operation position on the screen. In the screen shown in FIG. 8, when the meaning of this screen is not understood, if the comment button 100 is touched with a finger (hereinafter, expressed as pressed), a comment screen that displays comment information (not shown) is displayed. Also select each button etc. and explain button 1
By pressing 00, an explanation screen can be displayed.

Then, the tilt button 103 and the depth button 1
04, vehicle speed button 105, high grip turn button 1
06, back up button 107, turning up button 108
Is pressed to select a button for performing desired control.
At this time, the pressed button is lit to indicate whether or not the button is selected. The control not selected becomes manual control. When the tilt button 103, the depth button 104, and the vehicle speed button 105 are pressed, each setting screen is displayed. For example, when tilt control is selected, a tilt angle setting screen for the work implement is displayed. If you select depth control, you can set how many centimeters the tillage depth should be. When the vehicle speed control is selected, the traveling speed can be set and the vehicle can travel at the set speed.

When the sub-transmission lever 19 is at the neutral position, a mode selection screen as shown in FIG. 9A is displayed. However, a mode suitable for the type of the work machine to be mounted can be selected. For example, work machine 1
In the case of the mode, the rough raising button 111 and the deep cultivation button 11
2. When the fine soil button 113 and the ultra-fine soil button 114 are displayed, and the roughing is selected, the screen of FIG. 9B is displayed. When the manual is selected on this screen (M: press the manual position), The screen of FIG. 10 is displayed, and becomes a guide screen for how to do so. In this case, it is clearly indicated that the main shift lever 18 is shifted to any one of 1 to 4, and the PTO shift lever 25 is set to the first speed. When an operation information display button (not shown) is pressed, the current vehicle speed, engine speed and P
The TO speed is displayed. Also, in the running state,
The operation information of the vehicle speed, engine speed and PTO speed at that time is displayed. Then, when the work is performed by the automatic control, the "on" button 101 is pressed to start traveling.
To cancel the automatic control, the user presses the "OFF" button 102.

Further, the liquid crystal panel 13 alerts the user to an operation error, and displays abnormal information such as an abnormality or a malfunction of the machine and its contents. As a cautionary indication, for example, the connecting plate 23 is
If the sub-shift lever 19 is shifted to a high speed side without connecting the 2L, the brake may be turned sharply when one-brake is performed at a high speed, and the brake may be turned over. A signal from the sensor 79 is input to the travel controller 70 and calculated, and a screen display as shown in FIG. 12 is displayed. Similarly, although not shown, when the working machine is raised or lowered, or when hunting occurs when stopped at a set height, when a seat belt is not worn, or when turning on a steep slope, In the case or when the vehicle starts running with the parking brake locked, the contents are displayed on the liquid crystal panel 13 so as to draw the same attention.

FIG. 13 shows an example of a malfunction display when a sensor of a working machine breaks down due to an abnormality of an electric device.
A display screen as shown in (a) is displayed, showing what is abnormal and the state. Then, when the comment button 115 is pressed, the screen shown in FIG. 13B is displayed, and the content of the abnormality is displayed. By pressing the back button 116, the
It returns to the screen of (a). Similarly, although not shown in the drawing, the contents of the malfunction and the operation and countermeasures thereof are also displayed when other sensors are abnormal, the actuator is malfunctioning, or the remaining amount of fuel is lower than a set value. I have to. In addition, respective commentary information can be displayed. In addition, when the operation is proper or the failure is resolved, the screen returns to the normal screen.

As described above, according to the present invention, when the driver is seated on the driver's seat 5 and turns on the key switch, an initial state is displayed on the liquid crystal panel 13 and whether there is any abnormality in the main body is displayed. Then, after starting the engine or every time the operation lever is operated, it is also displayed whether there is an operation error.
Then, the operation information is displayed in the traveling state or the work state, and when an operation error or an abnormality occurs in the machine body, the location and the cause of the error or abnormality are displayed on the LCD screen at that time, and the countermeasure is also displayed. It is.

At the time of work, a work state corresponding to the type of work can be input from the liquid crystal panel 13 and set. At this time, the operation and the state of the work machine accompanying the operation are performed by simply selecting a button by pressing a button, so that even a beginner can easily perform the operation.

[0027]

According to the present invention, the following effects can be obtained by the configuration described above. That is, as in claim 1, a display means for displaying the current operation information, operation information, and abnormal information of the work vehicle on the screen in the driving section of the traveling work vehicle, and performing a selection operation and a setting operation on the same screen. Since the display device having the operation means is provided, the driver can easily grasp the running state and the working state while sitting on the seat. In addition, a state when operating the operation lever, a defect with respect to the operation, and the like are also displayed, so that an appropriate operation can be easily understood, and the appropriate state can be easily set. In addition, when an abnormality occurs during traveling or the like, the abnormality is displayed, and it is easy to know where and what abnormality has occurred,
Coping can be done quickly and easily. In addition, since selection and setting can be performed on the screen, the operation switches are not arranged separately, but are arranged in a concentrated manner, so that the switches are not complicated, the number of parts is reduced, and the operation unit is reduced. Can be simplified compactly, which leads to easier driving operation. In addition, by displaying them with words or images, they are embodied and can be easily understood. Further, the number of labels stating operation methods and precautions to be affixed to various parts of the body can be reduced, and the appearance can be improved.

[0028] Further, since it is possible to display the operation information, the operation information, the abnormality information, the selection operation and the setting operation of the work vehicle, the meaning of the operation, the operation, the abnormality and the setting can be displayed. It is easy to understand, the user can operate while understanding the operation and the like without always carrying a manual, and errors can be reduced.

Further, since the display device is arranged so as to protrude forward of the driver's seat and at the center rear of the dashboard, the driver can easily see the display device in the driving posture. There is no need to return to the posture, and it is easy to recognize. In addition, since the meter panel, the steering wheel, and the levers are located close to each other, the operation system is centralized. In a general tractor, there is no other device in the mounting position of the display device that hinders the operation, and the display device is arranged in an easy-to-handle position.

[Brief description of the drawings]

FIG. 1 is a plan view of a tractor equipped with a display device of the present invention.

FIG. 2 is a plan view of a meter panel.

FIG. 3 is a plan view of a fender.

FIG. 4 is a side view in which the display device of the present invention is laid on a dashboard.

FIG. 5 is also a rear view.

FIG. 6 is a plan view of the same.

FIG. 7 is a control block diagram.

FIG. 8 is a diagram showing a setting screen of a liquid crystal panel.

FIG. 9 is a diagram showing a screen in a work mode.

FIG. 10 is a diagram showing a screen at the time of setting a rough rise.

FIG. 11 is a diagram showing a screen displaying current information at the time of the work of raising the work.

FIG. 12 is a diagram showing an alarm screen.

FIG. 13 is a diagram of a screen showing an abnormality.

FIG. 14 is a plan view of a conventional meter panel.

FIG. 15 is a plan view of a conventional fender.

[Explanation of symbols]

 5 Driver seat 11 Dashboard 13 LCD screen 30 Driver

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Hiroyuki Hagiwara 1-1-1, Ishiba, Matsumoto-shi, Nagano Prefecture Inside the Matsumoto Plant of Shibaura Machinery Co., Ltd. (72) Inventor Tetsuo Kubota 1-1-1, Ishiba, Matsumoto-shi, Nagano Prefecture No. F term in Ishikawajima Shibaura Machinery Co., Ltd. Matsumoto factory (reference) 2B043 AA04 BB01 DA04 DB04 DB30 DC03 EE01 EE06 EE08 3D044 BA04 BA14 BA20 BA26 BA27 BB04 BD02

Claims (3)

[Claims] 1. A driving unit of a traveling work vehicle includes a display unit for displaying current operation information, operation information, and abnormality information of the work vehicle on a screen, and an operation unit for performing a selection operation and a setting operation on the same screen. A display device for a traveling work vehicle, comprising a display device having the same. 2. The traveling work vehicle display device according to claim 1, wherein operation information, operation information, abnormality information, and selection information and setting operation commentary information of the work vehicle can be displayed. 3. The display device for a traveling work vehicle according to claim 1, wherein the display device is disposed so as to protrude forward of a driver's seat and at a center rear portion of a dashboard.